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Old 05-27-09, 08:15 PM   #1
[NRG]Sonic
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Join Date: May 2009
Posts: 6
Default Sound not working when Nvidia driver in use (GTX 260, ASUS P6T Intel X58)

Hi,

My PC is an Alienware Area-51 750i X58 with a Flextronics NVIDIA GTX 260, ASUS X58 Motherboard P6T Deluxe, Intel i7-920 CPU@2.66GHz and 6GB DDR3 RAM. My TFT is a LG Flatron M228WD, connected to the PC via HDMI and Line-out(?).

The computer is used with the 64bit versions of Ubuntu 8.10 and 9.04. On a freshly installed system the sound works flawless, but as soon as the official nvidia driver is installed and activated, the sound volume becomes so low it's barely audible. This happens both with the drivers shipped by Ubuntu as well as the latest beta drivers 185.18.10. Also tried everything under Ubuntu 32bit, but it's the same there. Cranking up all levers in Alsa Mixer GUI also doesn't lead to satisfactory volume levels. The problem affects the headphone as well, i.e. the TFT speakers aren't the only ones being barely audible.

With the nvidia driver installed, commenting out the line

Code:
Driver         "nvidia"
in /etc/X11/xorg.conf will give me the sound back, at the expense of 3D acceleration. So it's either sound or 3D for me! Why does the activated nvidia driver decrease the sound volume and what can I do against it (apart from disabling it)? Any help would be extremely appreciated!



Here is some information about my system. If you need more, don't hesitate to ask!


xorg.conf before installing nvidia driver (Ubuntu default):

Code:
# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# Note that some configuration settings that could be done previously
# in this file, now are automatically configured by the server and settings
# here are ignored.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Device"
	Identifier	"Configured Video Device"
EndSection

Section "Monitor"
	Identifier	"Configured Monitor"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Monitor		"Configured Monitor"
	Device		"Configured Video Device"
EndSection

xorg.conf when letting Ubuntu install and configure nvidia driver:

Code:
# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# Note that some configuration settings that could be done previously
# in this file, now are automatically configured by the server and settings
# here are ignored.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Monitor"
	Identifier	"Configured Monitor"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Monitor		"Configured Monitor"
	Device		"Configured Video Device"
	DefaultDepth	24
EndSection

Section "Module"
	Load	"glx"
EndSection

Section "Device"
	Identifier	"Configured Video Device"
	Driver	"nvidia"
	Option	"NoLogo"	"True"
EndSection

xorg.conf when manually installing latest beta driver 185.18.10 and letting the installer configure it:

Code:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister@builder58)  Mon May 11 20:05:22 PDT 2009

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Information about my ALSA configuration when no proprietary driver present:
http://www.alsa-project.org/db/?f=af...cb01b336cd518b

Information about my ALSA configuration with latest beta driver:
http://www.alsa-project.org/db/?f=43...5b6e93487d9f37
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